BMW R134a A/C Solutions High-Pressure Cut Off Switch (green) (E30, E28, E24, etc.) (64531386971)

BMW R134a A/C Solutions High-Pressure Cut Off Switch (green) (E30, E28, E24, etc.) (64531386971)
Description
The high-pressure cut off switch is used to disengage the A/C compressor when the system reaches maximum pressure. Unlike your original switch, this is specifically designed for R134a as the high-pressure side operates at a higher PSI than that of R12. 
What’s included?
R134a high-pressure cut off switch
Fitment notes:
This switch is compatible with the E28/E24 filter drier and the early model E30 filter drier.
For use with the following models: BMW E23, E24, E28, E30
Cross reference part numbers: 64538363859, 64531386971, ACS0247P, MT0307